Colony

#ifndef _NODE_DATABASE_

#define _NODE_DATABASE_

#define NUM_FEATURES 5

/****************************

 * Node Information: 5-bit Integer

 *         3 bits of node type

 *         2 bits of entry information

 *

 * Also contains a "feature id": 4 bits in positions 13,14,15,16

 * 

 ****************************/

 /********************************

 *  Feature TYPES:

 *

 ********************************/

#define INTERSECTION_NODE        0

#define ROAD_NODE                1

 /********************************

 *  Node TYPES:

 *

 *

 *  SINGLE      0

 *  ON_RAMP     1

 *  OFF_RAMP    2

 *  DOUBLE_C    3

 *  DOUBLE_T    4

 *

 ********************************/

 /********************************

 *  More Node TYPES:

 *

 ********************************/

#define ROAD            5 

        /*placeholder for all roads atm, until we come up with a better solution */

 /********************************

 *  Turn TYPES:

 *  

 *  ISTRAIGHT                0

 *  ILEFT                1

 *  IRIGHT                2

 *  IUTURN                3

 *

 ********************************/

 /********************************

 *  Road TYPES:

 *

 ********************************/

#define ROAD_DOUBLE        0

#define ROAD_SINGLE        1

#define HIGHWAY                2

/********************************

 *  Intersection ENTRYPOINTS:

 *

 ********************************/

//DOUBLE_C intersection (Cross Intersection) positions

//use T-Junction positions

//DOUBLE_T intersection (T-Junction) positions

/*

TLEFT=======TRIGHT

        ||

        ||

        ||

        TMIDDLE

*/

#define TLEFT                0                        

#define TRIGHT                1                        

#define TMIDDLE                2

//SINGLE intersection positions

/*

           /\

          /||\

           ||

SACROSS==========>

           ||

           ||

           ||

           SUP

*/

#define SACROSS                0

#define SUP                1

//ON_RAMP and OFF_RAMP intersection positions

/*

R_LEFT================R_RIGHT

            ||        

            ||

            ||

          R_RAMP

*/

#define R_LEFT                0

#define R_RIGHT                1

#define R_RAMP                2

// Global variable for the intersection database.

int NodeData[NUM_FEATURES];

void initializeData();

void insertNode(int key, int featureid, int node_type, int node_info);

void insertIntersection(int key, int intserction_type, int intersection_position);

void insertRoad(int key, int node_type, int road_type);

// Functions to get data from the Database:

int getFeatureId(int key);

int getIntersectType(int key);

int getIntersectPos(int key);

int getRoadType(int key);

int getRoadInfo(int key);

#endif